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Roughness Effects in Head’s Integral Boundary-Layer Method
Publisher: The American Society of Mechanical Engineers (ASME)
Probabilistic Nonroad Mobile Source Emission Factors
Publisher: American Society of Civil Engineers
Abstract: Quantitative methods for characterizing both variability and uncertainty are applied to case studies of nitrogen oxides
Engine and Duty Cycle Variability in Diesel Construction Equipment Emissions
Publisher: American Society of Civil Engineers
Abstract: This paper explores methods for analyzing onboard mass emissions data and developing modal models on the basis of case study examples for nine selected nonroad construction vehicles. Data for these vehicles were obtained ...
Modeling and Evaluation of Externally Fired Combined Cycle Using Aspen
Publisher: American Society of Civil Engineers
Abstract: A new performance model of the externally fired combined cycle (EFCC) is implemented in ASPEN (Advanced System for Process ENgineering), a chemical process simulator. The model accounts for interactions within and between ...
Simplified Performance Model of Gas Turbine Combined Cycle Systems
Publisher: American Society of Civil Engineers
Abstract: Conventional evaluation approaches for complex technologies, such as gas turbine systems, typically use process simulators for modeling, which are usually complicated and time-consuming. In order to facilitate policy ...
A Simple Theory for the Two-Dimensional Compressible Turbulent Boundary Layer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new approach is proposed for analyzing the compressible turbulent boundary layer with arbitrary pressure gradient. Utilizing a compressible law-of-the-wall and a Crocco energy approximation, the ...
Evaluation Method for Advanced Acid Rain Compliance Technology
Publisher: American Society of Civil Engineers
Abstract: Technological innovation in emissions control of acid rain precursors has made possible increasingly stringent control requirements for coal‐fired power plants. A key challenge for potential process adopters is evaluation ...
A Three-Dimensional Integral Method for Calculating Incompressible Turbulent Skin Friction
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new integral method is proposed for the analysis of three-dimensional incompressible turbulent boundary layers. The method utilizes velocity profile expressions in wall-law form to derive two ...
Methodology for Estimating Emissions Inventories for Commercial Building Projects
Publisher: American Society of Civil Engineers
Abstract: Construction of commercial buildings has an environmental impact because of emissions from nonroad equipment. Construction produces 7% of the U.S. greenhouse gas emissions, of which 76% originates from engines. However, ...
Road Grade Measurement Using In-Vehicle, Stand-Alone GPS with Barometric Altimeter
Publisher: American Society of Civil Engineers
Abstract: Real-world vehicle fuel use and emission rates are sensitive to road grade. There is a need for a practical method for measuring road grade in combination with on-board measurement of vehicle activity, energy use, and ...
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